Grass Valley Maestro Master Control Reference Manual v.2.4.0 - Manual (Page 157)

MAESTRO — Automation Interface Protocol Technical Reference Manual 157
MAESTRO_CONTENT_PRESENCE
MAESTRO_CONTENT_PRESENCE
(Query the presence of a content file)
Hex definition Mnemonic
0x83 MAESTRO_CONTENT_PRESENCE
Command format:
N/A
Command notes:
1. This command reports the presence of content on the local channel stores.
2. Valid characters include A-Z, a-z, underscore, and period ".".
3. Deployed content on the local channel stores will have been converted to an internal format with an internal file exten-
sion. The specified <contentType> determines the internal extension and location of the specified root filename. If a
filename extension is provided, the extension will be ignored as the <contentType> parameter will determine the inter-
nal extension and location of the specified root filename.
Query format:
READ <PREAMBLE> MAESTRO_CONTENT_PRESENCE <contentType> <filename>
Reply format:
IFRE <PREAMBLE> MAESTRO_CONTENT_PRESENCE <contentPresence> <contentType> <filename>
Use applicable with UPDATE:
No
Argument definitions:
<contentPresence> = 0-1
0 = NOT Present
1 = Present
<contentType> = (1 byte)
1 = Text
2 = Audio
3 = Still
4 = Animation
<filename> = (40 bytes, MSB first) Null terminated and filled ASCII representation of filename
Note Querying with an empty filename string will result in the return of an empty filename string and a
contentPresence response of "Not Present".